The Holbæk Line (Danish: Holbækbanen) is a 49.4 km (30.7 mi) long[2] standard gauge single track local passenger railway line linking Holbæk with the town of Nykøbing Sjælland in the northwestern part of the island of Zealand some fifty km west of Copenhagen, Denmark.

Train services on the Odsherred Line are operated by the railway company Lokaltog.

It was created to strengthen the economic development in Odsherred following the reclamation of Lammefjorden.

The original intention was to build a station or halt in each of the civil parishes that contributed to its financing.

[3] OHJ operated the railway until May 2003 when it merged with Høng-Tølløse Jernbane under the name Vestsjællands Lokalbaner and with headquarters in Holbæk.